Could she be on to something in the new age of so-called iparenting? Abc's akiko fujita is here with the story. This is a story that a lot of teens can relate to. Parents with a very long list of rules, a teenager had been begging his mom for an iphone all year without much success. He was pleasantly surprised to find one wrapped up on christmas day. That is until he found he very permanent, very detailed contract that came with it, not from the phone company, no, this one was written by his mom. Number one it is my phone, i bought it, I pay for it. No porn. I will always know the password. Reporter: It's not exactly the christmas list you'd expect as a 13-year-old. Hand the phone in to one of your parents at 7:30 p.M. An 18-point contract littered WITH DOs AND DON'Ts. Don't take a zillion pictures and videos. Reporter: Greg hoff pane's ticket to a new iphone. Oh, my god. My first reaction was why, why did she really have to do this? What I wanted to do and show him how you could be a responsible user of technology without abusing it without becoming addicted. Reporter: Janelle hoffman's message has struck a chord with parents worried about the increasing use of smartphones. More than 50 million iphones are projected to sell this holiday season alone. Many of them to teens just like greg. Teen behavior expert josh ship says a set of rules is at for teen iphone use. It wouldn't give your kid a car without making sure they have insurance so giving them a cell phone or a computer without teaching them how to use it responsibly is irresponsible on the part of the parent. Reporter: Among the 18 conditions, number seven. Do not involve yourself in conversations that are hurtful to others. Reporter: At number 12, a lesson some celebrities could e this year. Take note, rihanna. Do not send or receive pictures of your private pars or anyone else's private parts. Respect especially nervous about rule number 6 which says he is responsible for replacement costs if the phone falls into the toilet or vanishes into thin air. A legitimate concern considering there are nearly 16,000 apple gadgets stolen in new york city alone this year. And if he does lose his phone -- hopefully I'll just make up a good excuse or -- Reporter: There are valuable lessons here for adults too. Keep your eyes up, see the world happening around you. Stair out a window, listen to birds, take a walk,alk two a stranger. Wonder without googling. Reporter: A lot was done in jest addressed to all the adults consumed with their iphones. My personal favorite, rule number three, do not ever ignore a phone call if the screen reads mom or dad not ever that's a golden rule of that family, right? Exactly. I like his initial response. Why? He did say that you about he said I would have followed these rules anyway. Oh, yeah, well, good answer. All right. Akiko, thank you, it's a great story.

This transcript has been automatically generated and may not be 100% accurate.

{"id":18094157,"title":"Mom Blogger Has Son Sign 18-point Agreement for iPhone","duration":"3:07","description":"Akiko Fujita reports the story of one mother enforcing cell phone etiquette.","section":"GMA","mediaType":"Default"}